Abstract: A combination of a loudspeaker housing and a suspension bracket for hanging the loudspeaker to a fixed suspension point, whereby the suspension bracket and the loudspeaker housing are provided with complementary mechanical coupling devices and whereby the suspension bracket and the loudspeaker are provided with complementary electrical contact points that are arranged to make contact with one another in the situation in which the loudspeaker housing and the suspension bracket are mechanically coupled by means of the mechanical coupling devices, and are further provided with means to fix the loudspeaker in a desired position with respect to the suspension bracket.

Abstract: Disclosed is a combination loudspeaker housing and suspension bracket for hanging to a fixed suspension point. The suspension bracket is provided with a first mechanical coupling device. The loudspeaker housing is provided with a second mechanical coupling device complementary to the first mechanical coupling device. The suspension bracket has at least two first electrical contact points at a fixed position and in a fixed orientation with respect to the first mechanical coupling device. The loudspeaker housing has at least two second electrical contact points located at a fixed position and in a fixed orientation with respect to the second mechanical coupling device. The first electrical contact points are complementary to the second electrical contact points. The first and second electrical contact points are arranged to make contact with one another in the situation in which the loudspeaker housing and the suspension bracket are mechanically coupled by the mechanical coupling devices.

Abstract: The present invention provides a method for obtaining a lithographic base comprising on a hydrophobic support a hydrophilic layer contiguous to said support containing a non-gelatinous hydrophilic (co)polymer or (co)polymer mixture, characterized in that said hydrophobic support is treated with a plasma treatment with an applied power density during the plasma treatment of at least 70 W min/m.sup.2 before applying to said support said hydrophilic layer.